Changed Makefile to use BINDIR as the destination for binary files instead
of DESTDIR, and reserve DESTDIR as the extra installation prefix commonly
used in package building.
Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Add missing headers, remove unused variables, specify implicit types.
Ensure compatibility with ancient systems is maintained.
Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
